=== 앱이 실제로 받은 헤더 전부 (trustedIPs 에 게스트 대역을 더한 상태) ===
{
  "headers" : {
    "host" : [ "app1.hyeonworks.com" ],
    "user-agent" : [ "curl/8.5.0" ],
    "accept" : [ "*/*" ],
    "x-forwarded-host" : [ "app1.hyeonworks.com" ],
    "x-forwarded-port" : [ "80" ],
    "x-forwarded-proto" : [ "http" ],
    "x-forwarded-server" : [ "traefik-697889c85-jqcjn" ],
    "x-real-ip" : [ "192.168.122.1" ],
    "accept-encoding" : [ "gzip" ]
  },
  "remoteAddr" : "192.168.122.1",
  "localAddr" : "10.42.0.27",
  "scheme" : "http",
  "secure" : false,
  "serverName" : "app1.hyeonworks.com",
  "serverPort" : 80,
  "requestUrl" : "http://app1.hyeonworks.com/api/echo"
}